Merge tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "PPC and ARM do not have much going on this time.  Most of the cool
  stuff, instead, is in s390 and (after a few releases) x86.

  ARM has some caching fixes and PPC has transactional memory support in
  guests.  MIPS has some fixes, with more probably coming in 3.16 as
  QEMU will soon get support for MIPS KVM.

  For x86 there are optimizations for debug registers, which trigger on
  some Windows games, and other important fixes for Windows guests.  We
  now expose to the guest Broadwell instruction set extensions and also
  Intel MPX.  There's also a fix/workaround for OS X guests, nested
  virtualization features (preemption timer), and a couple kvmclock
  refinements.

  For s390, the main news is asynchronous page faults, together with
  improvements to IRQs (floating irqs and adapter irqs) that speed up
  virtio devices"

* tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (96 commits)
  KVM: PPC: Book3S HV: Save/restore host PMU registers that are new in POWER8
  KVM: PPC: Book3S HV: Fix decrementer timeouts with non-zero TB offset
  KVM: PPC: Book3S HV: Don't use kvm_memslots() in real mode
  KVM: PPC: Book3S HV: Return ENODEV error rather than EIO
  KVM: PPC: Book3S: Trim top 4 bits of physical address in RTAS code
  KVM: PPC: Book3S HV: Add get/set_one_reg for new TM state
  KVM: PPC: Book3S HV: Add transactional memory support
  KVM: Specify byte order for KVM_EXIT_MMIO
  KVM: vmx: fix MPX detection
  KVM: PPC: Book3S HV: Fix KVM hang with CONFIG_KVM_XICS=n
  KVM: PPC: Book3S: Introduce hypervisor call H_GET_TCE
  KVM: PPC: Book3S HV: Fix incorrect userspace exit on ioeventfd write
  KVM: s390: clear local interrupts at cpu initial reset
  KVM: s390: Fix possible memory leak in SIGP functions
  KVM: s390: fix calculation of idle_mask array size
  KVM: s390: randomize sca address
  KVM: ioapic: reinject pending interrupts on KVM_SET_IRQCHIP
  KVM: Bump KVM_MAX_IRQ_ROUTES for s390
  KVM: s390: irq routing for adapter interrupts.
  KVM: s390: adapter interrupt sources
  ...

2 files changed, 101 insertions, 2 deletions

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index b8e9a43e501a..7d21cf9f4380 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -192,7 +192,7 @@ struct kvm_async_pf {
 
 void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu);
 void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu);
-int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn,
+int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva,
                        struct kvm_arch_async_pf *arch);
 int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu);
 #endif
@@ -297,6 +297,14 @@ static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memsl
         return ALIGN(memslot->npages, BITS_PER_LONG) / 8;
 }
 
+struct kvm_s390_adapter_int {
+        u64 ind_addr;
+        u64 summary_addr;
+        u64 ind_offset;
+        u32 summary_offset;
+        u32 adapter_id;
+};
+
 struct kvm_kernel_irq_routing_entry {
         u32 gsi;
         u32 type;
@@ -309,6 +317,7 @@ struct kvm_kernel_irq_routing_entry {
                         unsigned pin;
                 } irqchip;
                 struct msi_msg msi;
+                struct kvm_s390_adapter_int adapter;
         };
         struct hlist_node link;
 };
@@ -401,7 +410,9 @@ struct kvm {
         unsigned long mmu_notifier_seq;
         long mmu_notifier_count;
 #endif
-        long tlbs_dirty;
+        /* Protected by mmu_lock */
+        bool tlbs_dirty;
+
         struct list_head devices;
 };
 
@@ -911,7 +922,11 @@ static inline int mmu_notifier_retry(struct kvm *kvm, unsigned long mmu_seq)
 
 #ifdef CONFIG_HAVE_KVM_IRQ_ROUTING
 
+#ifdef CONFIG_S390
+#define KVM_MAX_IRQ_ROUTES 4096 //FIXME: we can have more than that...
+#else
 #define KVM_MAX_IRQ_ROUTES 1024
+#endif
 
 int kvm_setup_default_irq_routing(struct kvm *kvm);
 int kvm_set_irq_routing(struct kvm *kvm,
@@ -1064,6 +1079,7 @@ extern struct kvm_device_ops kvm_mpic_ops;
 extern struct kvm_device_ops kvm_xics_ops;
 extern struct kvm_device_ops kvm_vfio_ops;
 extern struct kvm_device_ops kvm_arm_vgic_v2_ops;
+extern struct kvm_device_ops kvm_flic_ops;
 
 #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
 
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 932d7f2637d6..a8f4ee5d2e82 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -413,6 +413,8 @@ struct kvm_s390_psw {
 #define KVM_S390_PROGRAM_INT            0xfffe0001u
 #define KVM_S390_SIGP_SET_PREFIX        0xfffe0002u
 #define KVM_S390_RESTART                0xfffe0003u
+#define KVM_S390_INT_PFAULT_INIT        0xfffe0004u
+#define KVM_S390_INT_PFAULT_DONE        0xfffe0005u
 #define KVM_S390_MCHK                   0xfffe1000u
 #define KVM_S390_INT_VIRTIO             0xffff2603u
 #define KVM_S390_INT_SERVICE            0xffff2401u
@@ -434,6 +436,69 @@ struct kvm_s390_interrupt {
         __u64 parm64;
 };
 
+struct kvm_s390_io_info {
+        __u16 subchannel_id;
+        __u16 subchannel_nr;
+        __u32 io_int_parm;
+        __u32 io_int_word;
+};
+
+struct kvm_s390_ext_info {
+        __u32 ext_params;
+        __u32 pad;
+        __u64 ext_params2;
+};
+
+struct kvm_s390_pgm_info {
+        __u64 trans_exc_code;
+        __u64 mon_code;
+        __u64 per_address;
+        __u32 data_exc_code;
+        __u16 code;
+        __u16 mon_class_nr;
+        __u8 per_code;
+        __u8 per_atmid;
+        __u8 exc_access_id;
+        __u8 per_access_id;
+        __u8 op_access_id;
+        __u8 pad[3];
+};
+
+struct kvm_s390_prefix_info {
+        __u32 address;
+};
+
+struct kvm_s390_extcall_info {
+        __u16 code;
+};
+
+struct kvm_s390_emerg_info {
+        __u16 code;
+};
+
+struct kvm_s390_mchk_info {
+        __u64 cr14;
+        __u64 mcic;
+        __u64 failing_storage_address;
+        __u32 ext_damage_code;
+        __u32 pad;
+        __u8 fixed_logout[16];
+};
+
+struct kvm_s390_irq {
+        __u64 type;
+        union {
+                struct kvm_s390_io_info io;
+                struct kvm_s390_ext_info ext;
+                struct kvm_s390_pgm_info pgm;
+                struct kvm_s390_emerg_info emerg;
+                struct kvm_s390_extcall_info extcall;
+                struct kvm_s390_prefix_info prefix;
+                struct kvm_s390_mchk_info mchk;
+                char reserved[64];
+        } u;
+};
+
 /* for KVM_SET_GUEST_DEBUG */
 
 #define KVM_GUESTDBG_ENABLE             0x00000001
@@ -675,6 +740,9 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_SPAPR_MULTITCE 94
 #define KVM_CAP_EXT_EMUL_CPUID 95
 #define KVM_CAP_HYPERV_TIME 96
+#define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
+#define KVM_CAP_ENABLE_CAP_VM 98
+#define KVM_CAP_S390_IRQCHIP 99
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -690,9 +758,18 @@ struct kvm_irq_routing_msi {
         __u32 pad;
 };
 
+struct kvm_irq_routing_s390_adapter {
+        __u64 ind_addr;
+        __u64 summary_addr;
+        __u64 ind_offset;
+        __u32 summary_offset;
+        __u32 adapter_id;
+};
+
 /* gsi routing entry types */
 #define KVM_IRQ_ROUTING_IRQCHIP 1
 #define KVM_IRQ_ROUTING_MSI 2
+#define KVM_IRQ_ROUTING_S390_ADAPTER 3
 
 struct kvm_irq_routing_entry {
         __u32 gsi;
@@ -702,6 +779,7 @@ struct kvm_irq_routing_entry {
         union {
                 struct kvm_irq_routing_irqchip irqchip;
                 struct kvm_irq_routing_msi msi;
+                struct kvm_irq_routing_s390_adapter adapter;
                 __u32 pad[8];
         } u;
 };
@@ -855,6 +933,7 @@ struct kvm_device_attr {
 #define   KVM_DEV_VFIO_GROUP_ADD                        1
 #define   KVM_DEV_VFIO_GROUP_DEL                        2
 #define KVM_DEV_TYPE_ARM_VGIC_V2        5
+#define KVM_DEV_TYPE_FLIC               6
 
 /*
  * ioctls for VM fds
@@ -1009,6 +1088,10 @@ struct kvm_s390_ucas_mapping {
 /* Available with KVM_CAP_DEBUGREGS */
 #define KVM_GET_DEBUGREGS         _IOR(KVMIO,  0xa1, struct kvm_debugregs)
 #define KVM_SET_DEBUGREGS         _IOW(KVMIO,  0xa2, struct kvm_debugregs)
+/*
+ * vcpu version available with KVM_ENABLE_CAP
+ * vm version available with KVM_CAP_ENABLE_CAP_VM
+ */
 #define KVM_ENABLE_CAP            _IOW(KVMIO,  0xa3, struct kvm_enable_cap)
 /* Available with KVM_CAP_XSAVE */
 #define KVM_GET_XSAVE             _IOR(KVMIO,  0xa4, struct kvm_xsave)